Candle lathe



11,482,224 E. J. ENGMAN CANDLE LATHE 2 Sheets-Sheet 1 mm d m m g Mm k n um 'mm i Hill hll l I l Jan. 29, 1924.'

Jan. 29, .1924.

482,224 E. J. ENGMAN I CANDLE LATHE 2 2 9 Flled July 26. 19 2 2 Sheets Sheet /7 fig-4- /8 f I I 1 2 2 Patented Jan. 29, 1924.

sures EYALD JULIUS NGMAN; or I SYRACUSE, NEW

YORK, ASSIGNOR TO WILL & nau unn CANDLE no, INC; or sYaAcUsE, YORK.

CANDLE LATHE.

Application fil ed-Jnl y 26, 1922. Serial No. 577,?42.

T all whom it may concern:

vBe" it known'that L-EVALD J L UsENe- MAN, of Syracuse, in the county ofjOnon- "daga, in the State 'ofNeW York, have-invented new and useful Improvements in Candle Lathes; of which the following, taken in connection with the accompanying drawings, is a full, clear, ande'xa'ct descrip- "tion.

This invention relates to certain improve-- ments in a candle-lathe adapted tobe used more particularly -forturning or drilling thebases of candles to-enable'them to" becomveniently supp'ortedinor upon special forms of candelabra or other suitable supports;

These candles are usually made i in cylindric'al 'form of considerable" length with a central wick passing 'therethru, and are afterward cut transversely" into desired lengths; "and themain object "0 f my'presg ent inventiond's;to provide asiniple, practical and efliei'ent lath e wherebfy' one end forming thebase of the candlemay be conveniently and expeditiously turned or bored w a predetermined diameter-or tapefac cording to thesize orshape of the holder uponwhich the candles are to lee-mounted.

Owing'to' the delicacy aiid' fragility of the material from" which the candles are "when" once setfthe lengthof'the' cut'ofall candles inserted in the machine will be-the same, the object of the adjustability of the stop being't'o permit th'e"bases ofthe 'c'ai1 dies to be machined at' different lengths.

A further object is to provide adjustable means for centeringan d guiding the candles in their "axial jmoveinentf as they are moved by and 'into'and out ofengage'ment with thecuttin'g tool.

A sti l'l furthenobject is to operate the rotary cutting tool means of a directconnected motor preferahly' an electribmowr mounted upon the same supportas and coaxial ,with 'thebearingyfor said cutter;

parts of the machine will be brought out in the following'description.

In the drawings: I Figure 1 is a top plan of a machineeinbodying' various features of my invention asused for turning the bases of the candles to a reduceddiameter.

Figure 2 is a longitudinal vertical sectionalview Ofthesame machine taken on line 2-2, Figure 1."

Figures 3, 4 and 5 are'enlarged transverse sectional views taken respectively in the plane of line 33 Figure 2, and on lines 4- i and55 Figure 1. I

Figurefi isa detail sectional view of a modified form of cutting head and cutters thereon'for tapering the bases of candles.

- Figure 7 is a sectionalvie'w o'fthe tubular candle guide similar to that shown in Figure '2 except enlarged. v

Figure 8 is a transverse sectional view;

taken in thepla ne ofline 8 8 Figure 6.

Figure 9 is a detail sectional view partly in elevation of a further modifiedro-rm f cutter for producing a" tapering bore 'centrall'y in the base of the candle, and; a modified form ofadjustablest'o'p for limiting the endwise movement of the"candle into engagement with the cutter.

As illustrated in Figures 1 to 5 inclus ve, tlllS maCl11{1e COTIipT1S8S a main supporting r v o I l frame or bed 1- disposed 111a substantially horizontal position and provided on itsup'pjer side with lengthwise ways -2' for'recelving and supporting a candle guide ,3-' and fa candle rest 4 both of which --2 andare held' in their adjustable posiition by suitable clamps An electric motor 6 and a journal bearing 7' are mounted upon the bed 1 in coaxial relation with ea'ch other and with the guide -3, the bearing "-'7 serving-to receive and support a rotary tool holder 8.

This tool holder is provided with a cylindrical shank iournaled in the bearing '7- and provided 'with'a central lengthwise threaded aperture 10 forrece ving an adjustable stopscrew 11 said shank 9 having one end coupled 'tothe 'ad 'acent end o'f thearmature'shaft 12- and 'itsfo'ther endfprovided with, a for i lif Othet'objects and' usesrelating to' specific- I j is movable axially The free ends of the opposite arms of the head l3 are provided with guide openings 14 disposed in substantially .the same radial plane at opposite sides of and at equal angles to the axis of the rotary tool holder 8 for receiving a pair of cutting tools 15 which are adjustable in the openings 1 l toward and from the axis of the holder, and are held in their ad j usted position by set screws l6.

The head of the ad ustable stop -llbetween the 15* and base of the tool holder --8 so as to permit the distance between said cut.- ters and head of the limiting stop to be adjusted at will for determing the length of the cut on the base of the candle as -aas the latter is fed by hand thru the guide 3- and upon the rest in the act of turning the base of the candle.

The guide 3 includes a tubular bushing -l7' removably secured in its supporting bracket 18 by means of a thumb screw 19 so as to permit different bushings to be used according to the diameter of the candle, the base of which is to be turned, it being understood that the opening in the bushing through which the candle is moved is preferably of substantially the same diameter as that of the candle and serves as a means for centering the candle relatively to the axis of the rotary tool holder 8, and also for holding the candle against lateral vibration during the turning operation.

The candles to be operated upon may vary materially in length, and the adjustability of the guide 3 and rest 4- permits the candles of different lengths to be properly supported against decentering or vibration during the turning operation on the base thereof without liability of marring the surface of the main body of the candle.

The candle rest -4 includes a head -20- having a lengthwise V-shaped groove in its upper side for receiving the adjacent portion of the candle, said head being provided with a threaded shank extending thru a vertical opening in the supporting base as --2l which is formed with a transverse slot -22- for receiving a nut 23 engaging the threaded shank of the head -2O- for adjusting said head vertically to properly support the adjacent end of the candle aas the latter is moved back and forth in the guide ---3.

, The head 20 is also provided with a pendant key or pen 24 entering a corresponding opening in the bracket 2l to prevent turning of said head or rather to keep the groove in the upper face thereof in alignment with the guide -3.

The machine thus far described is for turning the base of the candle to a reduced diameter, but in some instances it is desired cutters to taper the base of the candle by turning, and for this purpose is provided a slightly modifiedform of forked head -8' and a pair of opposite longitudinally extending cutter blades -15' which are secured to opposite faces of the opposite arms of said head by clamping bolts 16-, the openings as l4-- in the blades for receiving said bolts being elongated transversely to allow the blades to be tilted to different angles relatively to the axis of the head to produce different tapers on the bases of the candles as shown more particularly in F igures 6 and 8.

In other instances, the bases of the candles are formed with central tapered bores for receiving corresponding supports, and in order that these bores may be formed expeditiously in such manner as to remove the adjacent portion of the wick without mutilating the candle, I have provided a further modified form of tool holder or rotary head --8 shown in Figure 9 for receiving a tapered cutting tool -15, the'free end of which'is made in the form of aspiral cutter capable of cutting the wick in small pieces and allowing them to pass out with the other material as the tool enters the candle, the tool being secured in the holder by means of a set screw 16"-.

In this latter construction it is not practical to employ the center sto -11- by reason of the fact that the too --15" is centrally secured in the holder '-8", and I have therefore substituted a modified form of stop 11-- consisting of a round rod -25 adjustably mounted in a lengthwise opening 26 in one side of the guide 3, and adapted to be held in its adjusted position by a set screw -27 as shown in Figure A stop plate 28 is secured to and projects radially from one end of the rod -25 between the guide -3- and tool holder 8" to-be moved 'into the path of the candle as aat one side of the tool -15- for limiting the movement of the candle relatively to the tool so that the latter may'enter the candle a predetermined, distance only as determined by the position of the stop plate -28-.

In the operation of my invention, the motor 6 andpp'arts driven thereby/arc presumed to be in continuous action, and the cutters, stops and guides adjusted to operate upon a candle of certain size whereupon the candle blank is taken in hand and inserted endwise thruithe guide -3 with the other end supported on the rest 4- at which time the candle is heldby hand against rotation and advanced to the cutter until checked by the limiting stop engaging the end face thereof, thus completing the operation of turning or drilling the base of the candle after which the latt r s Withdrawn by hand and the operation repeated with another candle.

By connecting the tool holderdirectly to the motor shaft, the cutting too-ls will be driven at a speed which, not only, greatly expedites the work of turning down or reducing the bases of the candles or drilling the tapered holes therein, but also reduces to a minimum the liability of mutilation of those portions of the candles, the turned or drilled surfaces being left in a smooth and satisfactory condition by reason of the high speed of rotation of the cutters.

In the use of the drilling tools shown in Figure 9, the peculiar spiral form of the free end of the cutter serves to sever the wick as well as to form a smooth bore in the candle stop and avoids any possibility of the wick becoming entangled with or wound upon the tool.

The devices are particularly simple and 'eflicient for carrying out the objects of my invention, but it is obvious that various changes may be made 1n the detail construction without departing from the spirit of my invention.

lVhat I claim is:

A candle lathe comprising a supporting bed having lengthwise guides on one end, a motor mounted on the: other end of the bed with its shaft extending lengthwise of the guides, a journal bearing mounted on the bed between the guides and motor, a tubular shaft journaled in said bearing coaxial with and having one end secured to the motor shaft, a cutter secured to the other end of the tubular shaft to rotate therewith, a stop adjustable coaxially of and within the tubular shaft, separate brackets adjustable lengthwise of and upon the bed guides toward and from the cutter, a tubular candle guide in one of the brackets coaxial with the tubular shaft, and a candle rest mounted in the otherbracket and adjustable radially of the produced axis of the tubular shaft.

In wltness whereof I have hereunto set my hand this 21 day of July, 1922.

EVALD JULIUS ENGMAN.

Witnesses:

C. C. CHAsE, F. F. SEGERBERG. 

